Dissimilis 

AppStoresScraper is library for downloading app metadata from Steam, Google, Apple and Windows app stores

Library for handling browsers bookmarks (supports Netscape bookmarks format)

Library for handling Chrome bookmarks. Supports reading from Chrome bookmarks file and JSON from Chrome API

Simple OWIN stateful token authentication middleware for when you want to store token in database

Library for handling Firefox bookmarks. Supports reading from Firefox bookmarks sqlite database